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CVE-2026-13732

7.0 · HIGH

A flaw was found in GDB's STABS debug format parser.

Published Aug 31, 2026CWE-787EPSS 0.13%

Overview

CVE-2026-13732 is a high-severity vulnerability. It was published on August 31, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A flaw was found in GDB's STABS debug format parser. The

read_member_functions() function in gdb/stabsread.c contains a linked

list removal bug in the code that separates destructor and non-destructor

member functions of C++ classes. The bug causes the destructor entries to

remain in the main function list while the list length counter is

decremented, resulting in an out-of-bounds write when the function list

is copied to its final allocated array. An attacker can craft an ELF

binary with malicious .stab and .stabstr sections that triggers this

out-of-bounds write when a user opens the file in GDB and performs any

symbol-inspection operation such as setting a breakpoint. The inferior

process does not need to be executed. Under controlled conditions, this

was demonstrated to achieve execution of arbitrary commands within the

GDB process.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2026:73425Refaccess.redhat.com/errata/RHSA-2026:73426Refaccess.redhat.com/errata/RHSA-2026:73427Refaccess.redhat.com/errata/RHSA-2026:79357Refaccess.redhat.com/errata/RHSA-2026:82447Refaccess.redhat.com/errata/RHSA-2026:82939Refaccess.redhat.com/security/cve/CVE-2026-13732Refbugzilla.redhat.com/show_bug.cgi?id=2494416

How CyberStrike helps

Frequently asked questions

What is CVE-2026-13732?

CVE-2026-13732 is a high-severity vulnerability. It was published on August 31, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2026-13732?

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-13732?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-13732?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-13732 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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